xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
43s
max time network
44s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
01-08-2024 20:43

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Reason

Machine shutdown

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General

Target

XClient.exe
Size

80KB
MD5

bfa950b37b6a4f8de71af861e677a8b4
SHA1

2ee40bfbf2964d92c82256e5924169295dfdd225
SHA256

07f94f8f6061ba95899914496edc5854aa810de56797d9004875276d60e21ade
SHA512

235b514fac01b24edaef3aeb4209676789b6ba9264a8798cb7ae48c26d2455cdd8f254e92bbba688535acb69fd77b3c0a0a549cf97ece84c235cc74f72234e1a
SSDEEP

1536:EI5NuEGJkEtydWqZQSp1eS+b59gxzhfxdl/5m6qeo//3Oy/4IK4Dax5:Eg1GhtktQGAS+b59cJ4eA/OlINDab

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

full-self.gl.at.ply.gg:45212

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2840-1-0x0000000000110000-0x000000000012A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2724	powershell.exe
220	powershell.exe
2296	powershell.exe
1328	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XClient.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1328	powershell.exe
1328	powershell.exe
1328	powershell.exe
2724	powershell.exe
2724	powershell.exe
2724	powershell.exe
220	powershell.exe
220	powershell.exe
220	powershell.exe
2296	powershell.exe
2296	powershell.exe
2296	powershell.exe
2840	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	XClient.exe
Token: SeDebugPrivilege	1328	powershell.exe
Token: SeIncreaseQuotaPrivilege	1328	powershell.exe
Token: SeSecurityPrivilege	1328	powershell.exe
Token: SeTakeOwnershipPrivilege	1328	powershell.exe
Token: SeLoadDriverPrivilege	1328	powershell.exe
Token: SeSystemProfilePrivilege	1328	powershell.exe
Token: SeSystemtimePrivilege	1328	powershell.exe
Token: SeProfSingleProcessPrivilege	1328	powershell.exe
Token: SeIncBasePriorityPrivilege	1328	powershell.exe
Token: SeCreatePagefilePrivilege	1328	powershell.exe
Token: SeBackupPrivilege	1328	powershell.exe
Token: SeRestorePrivilege	1328	powershell.exe
Token: SeShutdownPrivilege	1328	powershell.exe
Token: SeDebugPrivilege	1328	powershell.exe
Token: SeSystemEnvironmentPrivilege	1328	powershell.exe
Token: SeRemoteShutdownPrivilege	1328	powershell.exe
Token: SeUndockPrivilege	1328	powershell.exe
Token: SeManageVolumePrivilege	1328	powershell.exe
Token: 33	1328	powershell.exe
Token: 34	1328	powershell.exe
Token: 35	1328	powershell.exe
Token: 36	1328	powershell.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeIncreaseQuotaPrivilege	2724	powershell.exe
Token: SeSecurityPrivilege	2724	powershell.exe
Token: SeTakeOwnershipPrivilege	2724	powershell.exe
Token: SeLoadDriverPrivilege	2724	powershell.exe
Token: SeSystemProfilePrivilege	2724	powershell.exe
Token: SeSystemtimePrivilege	2724	powershell.exe
Token: SeProfSingleProcessPrivilege	2724	powershell.exe
Token: SeIncBasePriorityPrivilege	2724	powershell.exe
Token: SeCreatePagefilePrivilege	2724	powershell.exe
Token: SeBackupPrivilege	2724	powershell.exe
Token: SeRestorePrivilege	2724	powershell.exe
Token: SeShutdownPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeSystemEnvironmentPrivilege	2724	powershell.exe
Token: SeRemoteShutdownPrivilege	2724	powershell.exe
Token: SeUndockPrivilege	2724	powershell.exe
Token: SeManageVolumePrivilege	2724	powershell.exe
Token: 33	2724	powershell.exe
Token: 34	2724	powershell.exe
Token: 35	2724	powershell.exe
Token: 36	2724	powershell.exe
Token: SeDebugPrivilege	220	powershell.exe
Token: SeIncreaseQuotaPrivilege	220	powershell.exe
Token: SeSecurityPrivilege	220	powershell.exe
Token: SeTakeOwnershipPrivilege	220	powershell.exe
Token: SeLoadDriverPrivilege	220	powershell.exe
Token: SeSystemProfilePrivilege	220	powershell.exe
Token: SeSystemtimePrivilege	220	powershell.exe
Token: SeProfSingleProcessPrivilege	220	powershell.exe
Token: SeIncBasePriorityPrivilege	220	powershell.exe
Token: SeCreatePagefilePrivilege	220	powershell.exe
Token: SeBackupPrivilege	220	powershell.exe
Token: SeRestorePrivilege	220	powershell.exe
Token: SeShutdownPrivilege	220	powershell.exe
Token: SeDebugPrivilege	220	powershell.exe
Token: SeSystemEnvironmentPrivilege	220	powershell.exe
Token: SeRemoteShutdownPrivilege	220	powershell.exe
Token: SeUndockPrivilege	220	powershell.exe
Token: SeManageVolumePrivilege	220	powershell.exe
Token: 33	220	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2840	XClient.exe
4360	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 1328	2840	XClient.exe	73
PID 2840 wrote to memory of 1328	2840	XClient.exe	73
PID 2840 wrote to memory of 2724	2840	XClient.exe	76
PID 2840 wrote to memory of 2724	2840	XClient.exe	76
PID 2840 wrote to memory of 220	2840	XClient.exe	78
PID 2840 wrote to memory of 220	2840	XClient.exe	78
PID 2840 wrote to memory of 2296	2840	XClient.exe	80
PID 2840 wrote to memory of 2296	2840	XClient.exe	80
PID 2840 wrote to memory of 1260	2840	XClient.exe	83
PID 2840 wrote to memory of 1260	2840	XClient.exe	83

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1328
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2724
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:220
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:2296
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  PID:1260

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ae9855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
ad5cd538ca58cb28ede39c108acb5785

SHA1
1ae910026f3dbe90ed025e9e96ead2b5399be877

SHA256
c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

SHA512
c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
c3b0ba8965757a41eea06f53e67ee534

SHA1
89ded43fd18f2b5b2c06b21db0d67d1ee3cfeac8

SHA256
26b20f014ec3453a780a13bf093ba9e8d0f945ca641bd5a2aa3b3c6fcc5afb26

SHA512
e6f820336e2d7c24fed29c01ae99d88945f799531a5e369f72ca9292f1167de39e982a1cd5620b82e0762a6ee17851ecf754469c8ea3bac5ced39576a2a40d26

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
1bad421359eccaa03ca31a68e89dfd36

SHA1
361233e0bb379bd31d1d9922c110b997c8a9d25f

SHA256
0c667fd9a830205aa99ec678021ac737eb08eb9fdba8b04c3b3d7e4bbb44e0c7

SHA512
0d64281a4d3d66086429992a2fb772b0b3d2b1fe38ef14b52bd5e87300434e2146cded434988146f6727228f8952f3d34fde46d0a2e20789cca52d21d7020c85

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
69d269c67a2f5f1ad1cbae063794d1e8

SHA1
ae75d03d0ded5fc10027897cf8eb41b356baa9e0

SHA256
2fcd1db91b0c429e7196179da2a0a9344ceb50501d7bf10a52db387320d830b5

SHA512
7170f77934cbdfc1477e713af8e4b25e751c61a437c537d657eedcbee88dee415e5684d657044e86070356c42e2b2173644af8c455c8eb85dde871ad1ae5d74d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0zvxzwfb.tpv.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/1328-10-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/1328-9-0x00000216E9DB0000-0x00000216E9E26000-memory.dmp

Filesize
472KB

Download
memory/1328-20-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/1328-41-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/1328-48-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/1328-52-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/1328-6-0x00000216E9C80000-0x00000216E9CA2000-memory.dmp

Filesize
136KB

Download
memory/1328-19-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/2840-0-0x00007FFF5DA73000-0x00007FFF5DA74000-memory.dmp

Filesize
4KB

Download
memory/2840-1-0x0000000000110000-0x000000000012A000-memory.dmp

Filesize
104KB

Download
memory/2840-184-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/2840-185-0x00007FFF5DA73000-0x00007FFF5DA74000-memory.dmp

Filesize
4KB

Download
memory/2840-186-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download
memory/2840-187-0x00007FFF5DA70000-0x00007FFF5E45C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads